NAME

SYNOPSIS

DESCRIPTION

OPTIONS

Print only server-side statistics. The default is to print both server and
client statistics.

-c, --client

Print only client-side statistics.

-n, --nfs

Print only NFS statistics. The default is to print both NFS and RPC
information.

-2

Print only NFS v2 statistics. The default is to only print information
about the versions of NFS that have non-zero counts.

-3

Print only NFS v3 statistics.

-4

Print only NFS v4 statistics.

-m, --mounts

Print information about each of the mounted NFS file systems.

If this option is used, all other options are ignored.

-r, --rpc

Print only RPC statistics.

-o facility

Display statistics for the specified facility, which must be one of:

nfs

NFS protocol information, split up by RPC call.

rpc

General RPC information.

net

Network layer statistics, such as the number of received packets, number
of TCP connections, etc.

fh

Usage information on the server's file handle cache, including the
total number of lookups, and the number of hits and misses.

rc

Usage information on the server's request reply cache, including the
total number of lookups, and the number of hits and misses.

all

Display all of the above facilities.

-v, --verbose

This is equivalent to -o all.

-l, --list

Print information in list form.

-S, --since file

Instead of printing current statistics,
nfsstat
imports statistics from
file
and displays the difference between those and the current statistics.
Valid input
files may be in the form of
/proc/net/rpc/nfs
(raw client stats),
/proc/net/rpc/nfsd
(raw server stats), or saved output from
nfsstat
itself (client and/or server stats). Any statistics missing from a saved
nfsstat
output
file
are treated as zeroes.

-Z[interval], --sleep=[interval]

Instead of printing current statistics and immediately exiting,
nfsstat
takes a snapshot of the current statistics and pauses until it receives
SIGINT
(typically from
Ctrl-C),
at which point it takes another snapshot and displays the difference
between the two.
If interval is specified,
nfsstat
will print the number of NFS calls made since the previous report.
Stats will be printed repeatedly every interval seconds.

EXAMPLES

nfsstat -o all -234

Show all information about all versions of NFS.

nfsstat --verbose -234

Same as above.

nfsstat -o all

Show all information about active versions of NFS.

nfsstat --nfs --server -3

Show statistics for NFS version 3 server.

nfsstat -m

Show information about mounted NFS filesystems.

DISPLAY

The Flags output from the -m option is the same as the
flags give to the mount command.

FILES

/proc/net/rpc/nfsd

procfs-based
interface to kernel NFS server statistics.

/proc/net/rpc/nfs

procfs-based
interface to kernel NFS client statistics.

/proc/mounts

procfs-based
interface to the mounted filesystems.

SEE ALSO

BUGS

The default output has been changed. To get the old default output you must run nfsstat --auto -2.
The function of the -v and -a options have changed. The -a option
is now reserved for future use. The -v does what the -a option used to do,
and the new -[234] options replace the -v option.
The Display section should be more complete.
Further bugs can be found or reported at
http://nfs.sf.net/.